Sand mold composition

Compositions: coating or plastic – Coating or plastic compositions – Molds and mold coating compositions

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Details

106 389, 106 74, 106 84, B28B 734

Patent

active

041742249

ABSTRACT:
A self-hardening composition for making sand molds comprising a molding sand, a water glass as a binder and at least one salt of imidodisulfonic acid as a hardener.

REFERENCES:
patent: 3137046 (1964-06-01), Barlow et al.
patent: 3424600 (1969-01-01), Liass et al.

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